Pharmacovigilance stands as a crucial pillar in healthcare, acting as a vigilant protector of patient well-being across the entire lifespan of pharmaceutical products. Through systematic surveillance and evaluation of adverse drug reactions (ADRs), pharmacovigilance plays an essential role in pinpointing potential risks and upholding the comprehensive safety of medications. The book titled 'Ensuring Drug Safety: A Comprehensive Guide to Pharmacovigilance' is intended for D.Pharm., B.Pharm., and Pharm.D students, covering the syllabus of PCI. It provides knowledge to the students and will also be helpful for their examination preparation.